The good assassin : a novel
(Book)

Former CIA Agent George Mueller arrives in Havana in August 1958, just months before the fall of Cuban dictator Fulgencio Batista. He's looking into the activities of Toby Graham, a CIA officer suspected of putting weapons, covertly provided by the CIA to Batista, into the hands of Castro's forces. As the FBI, CIA, and State Department compete to influence the outcome of the revolution in the face of the brutal dictatorship's imminent collapse, Graham is troubled by the hypocrisy of a bankrupt US foreign policy, and has fallen in love with a married American woman.